Could iPhones and Big Data make us healthier?

One of the often overlooked wonders of the modern world is improvements to both our health, and the healthcare we receive. In the early 20th century the average life expectancy of someone, somewhere on Earth, was 31 – about the same as the rest of history before it. As of 2010, it’s 67. In the developed world, people can now expect to live into the 80s – and I’d wager that many of the kids born today will easily live to see their 100th birthday.